<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

      <div class="title-container">
        <h3 class="title">管理后台</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input ref="username" v-model="loginForm.loginName" placeholder="Username" name="username" type="text" tabindex="1" auto-complete="on" />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input :key="passwordType" ref="password" v-model="loginForm.password" :type="passwordType" placeholder="Password" name="password" tabindex="2" auto-complete="on" @keyup.enter.native="handleLogin" />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-form-item prop="textCode">
        <span class="svg-container">
          <svg-icon icon-class="nested" />
        </span>
        <div class="flex_box" style="width: 63%;">
          <el-input v-model="loginForm.checkCode" type="text" style="width: 100%;" auto-complete="off" placeholder="请输入验证码" @keyup.enter.native="handleLogin">
            <!-- <i class="el-icon-picture-outline" slot="prepend"></i> -->
          </el-input>
        </div>
        <captcha :uuid="loginForm.uuid" @verifyCode="receiveVerifyCode" />
      </el-form-item>

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登录</el-button>
      <ChangePwd :loginName="loginForm.loginName" :isShow="isShowChangePwd" @changeDialogStatus="changeDialogStatus"></ChangePwd>
    </el-form>
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'
import Captcha from '@/components/login/captcha'
// import AES from '@/utils/AES.js'
import { getPublicKey, saveLoginCheckCode, login } from '@/api/user'
import store from '@/store'
import { v4 as uuidv4 } from 'uuid';
import CryptoJS from 'crypto-js';
import JSEncrypt from 'jsencrypt'
import ChangePwd from './changepwd.vue';
import { setToken } from '@/utils/auth'

export default {
  name: 'Login',
  components: {
    "captcha": Captcha,
    ChangePwd
  },
  data () {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error('Please enter the correct user name'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('The password can not be less than 6 digits'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        loginName: 'admin',
        password: '1qaz!QAZ',
        uuid: '',
        checkCode: ''
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }],
        checkCode: [{ required: true, message: '验证码不能为空', trigger: 'blur' }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined,
      alphabet: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz',
      verifyCode: "",
      defaultAccount: "admin",
      defaultPwd: "123456Wp!",
      isShowChangePwd: false
    }
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd () {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin () {
      var param = { ...this.loginForm }
      this.loading = true
      param.checkCode = param.checkCode.toLowerCase()
      // if (this.defaultAccount === param.username && this.defaultPwd === param.password &&
      //   this.verifyCode === param.textCode) {
      //   localStorage.setItem("token", "ceshi");
      //   store.commit('SET_TOKEN', "ceshi")
      //   this.$router.push('/')
      // } else {
      //   this.$message.error('登录失败，请重试');
      // }
      // this.loading = false
      let encrypt = new JSEncrypt();
      let publicKey = sessionStorage.getItem("publickey")
      encrypt.setPublicKey(publicKey);
      const password = CryptoJS.MD5(this.loginForm.password).toString()
      param.password = password
      // param.password = encrypt.encrypt(password)

      login(param).then((res) => {
        this.loading = false
        if (res.status === 597) {
          this.isShowChangePwd = true
        }
        if (res.status === 591 || res.status === 592 || res.status === 593 || res.status === 594 || res.status === 595 || res.status === 596) {
          this.$message.error(res.message);
        }
        if (res.status === 200) {
          const data = res.data
          const token = data.token
          const user = data.userInfo
          // setToken(token.accessToken)  

          localStorage.setItem("token", token.accessToken)
          localStorage.setItem("refreshToken", token.refreshToken)
          localStorage.setItem("nickName", user.nickName)
          localStorage.setItem("avatar", user.avatar)
          localStorage.setItem("userId", user.id)
          // this.$store.state.name = nickName
          // this.$store.state.avatar = avatar
          this.$router.push('/')
        }
      });
    },
    /**
    * 生成随机的uuid
    */
    createuuid (length = 18) {
      let ret = ''
      let i = 0
      const l = this.alphabet.length
      while (i++ < length) {
        let index = Math.round(Math.random() * l)
        if (index < 0) index = 0
        if (index >= l) index = l - 1
        ret += this.alphabet[index]
      }
      return ret
    },
    receiveVerifyCode (verifyCode) {
      this.verifyCode = verifyCode.toLowerCase()
      const params = { uuid: this.loginForm.uuid, checkCode: this.verifyCode }
      saveLoginCheckCode(params).then((res) => {
        if (res.status === 200) {
          // const publicKey = res.data;
          // sessionStorage.setItem("publickey", publicKey);
        }
      });
    },
    getPublicKey () {
      getPublicKey().then((res) => {
        if (res.status === 200) {
          const publicKey = res.data;
          sessionStorage.setItem("publickey", publicKey);
        }
      });
    },
    changeDialogStatus (status) {
      if (status === "success") {
        this.isShowChangePwd = false
      } else {
        this.isShowChangePwd = status
      }
    },
  },
  created () {
    this.getPublicKey()
    // this.loginForm.uuid = this.createuuid()
    const uuid = sessionStorage.getItem("uuid")
    if (uuid === null) {
      this.loginForm.uuid = uuidv4()
      sessionStorage.setItem("uuid", this.loginForm.uuid);
    } else {
      this.loginForm.uuid = sessionStorage.getItem("uuid")
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
  ::v-deep .el-form-item__content {
    display: flex;
    align-items: center;
    justify-content: right;
  }
}
</style>
